Mortgage Calc. for Payoff Re-amortization

[Patrick Jones]

Hey everyone First Post here! 

I have a property I purchased at 135K, 4.5 years ago. Wife's ease of mind for this property is to just pay it off.  Im fine with that for this one house. SO 

First 3.5 years we just made the normal payments -  then in 6 months I paid about $22.5K down towards principle, this year has been about $10K (So maybe a total of $30.5K) (current loan balance is now $89,950)  so far this year and Im trying to find a calculator to assess how many more years left and how much interest we have saved, a place to input forecasting, so if we add $25K per year towards Principle when the loan would be paid off, and something I can adjust the numbers if we make more principle payments or less. 

*The reason why she wants this paid off is because it's no eligible for a Recast, or dropping PMI without an Refi- Rate is 3.5% at this point. Hard to beat I guess.

Thanks